Loose-leaf binder



Feb 27,1940. J,OOPER HAL 2,191,707

LOOSE-LEAF BINDER Filed July 12, 1938 s Sheets-Sheet 1 J C INVENTORS.

am ea 00 e1 .5. ieifpardflcffiaule ATTORNEYS.

Fa), 27, 1940. .1. COOPER 5 AL 2,191,707

LOOSE-LEAF 11111111111 Filed July 12, 1938 s Sheets-Sheet 2 Illa-.5-

ATTORNEY 3 Patented Feb. 27, 1940 UNITED e ms "PATENT OFFICE LOOSE-LEAF BINDER James Cooper, Solvay, and Gerhard H. J. Baule, Syracuse, N. Y., assignors to Hall & McChesney, Ind, Syracuse, N Y., a corporation of New York Application July 12, 1938, Serial No. 218,864;

1 Claim. I

This invention relates in general to loose leaf binders, and more particularly to a binder embodying a structure whereby the leaves and leaf impaling unit may be conveniently detached from the binder proper for the purpose of trimming the edges of the leaves.

At the present time, most records are recorded by aphotostat process and after the photostatic prints are perforated to be received on the leaf impaling posts of the binder, it is desirable to trim the edges of the leaves to improve the appearance of the record book. Preferably, this trimming operation is performed after the binder has been filled rather than to trim the individual sheets or leaves as they are placed in the binder.

The invention has as an object a loose-leaf binder structure by which the individual leaves can be quickly and conveniently inserted in the binder and the leaf supporting unit and leaves can beconveniently removed from the binder as a unit, the leaves trimmed and the unit re-' placed. In addition to these objects, the struc-' ture is particularly economical to manufacture. A binder of the type referred to is, disclosed in our copendingapplication, Sr. No. 183,874, fi Ja11- uary '7, 1938.

The invention consists in the novel features and in the combinations and constructions here-- inafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is a perspective view'of a binder embodying our invention'illustratingtheback member, leaf impaling unit and contiguous portions of the covers. Y

Figure 2 is a plan view of the back member and contiguous portions ofthe cover with the leaf impaling unit removed.

Figure 3 is a plan view of the leaf impaling unit.

. Figure 4 is a cross sectional view of the binder with the leaves inserted therein.

Figure 5 is a view, similar to Figure l, with one of the cover members in open position and the leaf clamping member detached from the posts.

Figure 6 is a lengthwise sectional view taken on substantially lines 6'6, Figure 2, and includ member ID as by screws I3. The edges of the outer covering layer II are folded over the side edges of the back member and extend between the back member and the plate I2. Also one sec-l tion I4 of a piano hinge is secured between the back member Ill and the plate I2, and the other section I6 secured to the covers I'I.

The leaf impaling unit consists of a leaf sup-" porting member I8 which is L shaped in cross? section and which extends lengthwise of the back member or plate I 2, and with the flange l9 thereof extending at right angles to the back member adjacent one side edge thereof. A plurality of-' leaf impaling posts 20 are rigidly secured at like ends to the flange I9 and are arranged in spacedapart relationship and extend transversely of the back member, see Figures 1 and 4. The upper ends of the posts Zil are formed with threaded apertures to receive the screws 2| which are employed to detachably secure a binder plate 22 to the upper ends of the posts. The binder plate 22 is also L shaped in cross section and the flange 23 thereof is arranged between the leaf supporting member I8 and plate i2, see Figure 4. The edge of the leaf supporting member I8 is formed with one or more projections 24, and the binder plate 22 is formed with complemental openings 25 to receive the projections 24. In this manner, relative endwise movement is prevented between the binder plate 22 and the leaf supporting member I8.

The leaf supporting member I8 is detachably secured to the plate l2. As here shown, the plate I2 is formed or provided with outwardly projecting lugs 26, and the plate I8 is formed with elongated apertures 21' through which the lugs 26 extend, and the lugs are formed with flanges 28 overlapping the plate I 8. The plate I8 is placed on the plate I2 with the lugs 26 extending through the aperture 27. The member I8 is then moved endwise relative to theplate I2, as downwardly in Figure 6, until the edges of the apertures 2'! engage the lugs 26. The leaf supporting member Isis maintained in this position by a cam look as pivoted at one end to the plate I2, as at 29, and formed with a laterally extending projection .iil to engage the end of the leaf supporting member I8. The cam lock 28 is provided with a manual 3| and with a depressed portion 32 which engages with an aperture 33 formed in the plate I2. The arrangement is such that when the cam lock 28 is moved from the dotted line position Figure 2, to the full line position extending transversely of the plate I2,

the leaf impaling unit I8 is urged against the lugs 26 with the flanges 28 overlapping the plate l8 and the parts are held in this position by engagement of the depressed portion 32 in aperture 33. The leaves are individually placed in the binder by removing the screws 2| and binder plate 22. The entire leaf impaling unit is removed from the back of the binder by simply moving the cam lock 28 to the dotted line position Figure 2, and moving the leaf supporting member lengthwise toward the cam lock to effect disengagement from under the flanges 28.

It will be apparent that our invention embodies a particularly economical yet rigid structure by which the leaf impaling unit and leaves may be quickly and conveniently removed from the binder and subsequently replaced.

What we claim is:

A loose-leaf binder comprising a back member, a cover hinged to each side edge of the back member, an angle plate extending lengthwise of the back member and being formed with a flange 1 plate being formed with a plurality of apertures, 10

said back member being provided with a plurality of lugs extending through the apertures in said first plate and being operable to interlock the first plate to the back member upon relative endwise movement between said plate and the 15 back member, and cam means carried by the back lnembertat one end thereof and operable to urge said first plate toward said lugs and maintain the same in engagement therewith.

JAMES COOPER. 20

GERHARD H. J. BAULE, 

